Ooohhhh...wish i knew the right answer for us!! Getting ready to embark on a cross country trip with layover, 2 y/o twins, and our 8 y/o in less than a month and I just can't decide!! It's between classic MA's or RN XTSL's.... I like the idea of ff with the RN on the plane and having use of the tray but one of the twins will have issues when we get on the plane (she freaks out in busses, small rooms, new places (I am preparing myself for her to scream until she falls asleep and praying that is not the case). This is the only reason I am thinking maybe rf on the plane would be better for her as it is more the norm. Anyone flown with rf MA? Legroom similar to in a vehicle?